ci: Consistent tsconfig setup for backend packages and fix pnpm typecheck for composite packages (no-changelog) (#9604)

Co-authored-by: Iván Ovejero <ivov.src@gmail.com>

.github/workflows/ci-pull-requests.yml

@@ -24,6 +24,9 @@ jobs:
       - name: Build
         run: pnpm build
 
+      - name: Run typecheck
+        run: pnpm typecheck
+
       - name: Cache build artifacts
         uses: actions/cache/save@v4.0.0
         with: